RRDtool include- or library-files not found.

Hi All,

I am using Red Hat Enterprise Linux 5.5.
I installed rrdtool-1.0.50 successfully with steps(#./configure,     #
make,    # make install).
Similarly i installed pcre-8.12 successfully with steps(#./configure,     #
make,    # make install).

Finally once i try to install xymon-4.2.3 with first step $ ./configure
Following error showing:

Checking for RRDtool ...
RRDtool include- or library-files not found. These are REQUIRED for hobbitd
RRDtool can be found at http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/
If you have RRDtool installed, use the "--rrdinclude DIR" and "--rrdlib DIR"
options to configure to specify where they are.
[xymon at t1vl001 xymon-4.2.3]$

Now i open the file "configure.server", but i can't understand where i need
to assign the above mention path. Also where can i find the "rrdinlude" and
"rrdlib" path.

Kindly help me out for the same.

With Regards,
Jayanta.